Home / 5,715.69-7,888.05-3,198.03

Finding the Fourth Proportional to 5,715.69, 7,888.05 and 3,198.03

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Solution

The fourth proportional to 5,715.69, 7,888.05 and 3,198.03 is: 4,413.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.69 : 7,888.05 = 3,198.03 : x
  2. Step 2: Convert to fraction form
    5,715.69/7,888.05 = 3,198.03/x
  3. Step 3: Cross multiply
    5,715.69x = 7,888.05 × 3,198.03
  4. Step 4: Simplify right side
    5,715.69x = 25,226,220.54
  5. Step 5: Solve for x
    x = 25,226,220.54/5,715.69
  6. Step 6: Final answer
    x = 4,413.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.